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| page 1 3q ?? ?n ? 1q ?? a? |3 -- ? q tontek design technology ltd . TT8486A/tt6061a product specification general description : TT8486A/tt6061a ic is a kind of cmos technology premitted to design 3 steps touch - dimm er. the detailed functions are as follow : TT8486A/(tt6061a): off night medium high off the time that triac turn on is as following for each step of all function 3 - step mode night medium high ac=110v/60hz 5.9 ? 0.4ms 4. 0 ? 0.3ms 1.0 ? 0.2ms ac=220v/50hz 6.8 ? 0.4ms 4.5 ? 0.3ms 0.9 ? 0.2ms pin assignment pin no. pin name function description i/o 1 ck system clock input i 2 fi 60 or 50 hz line frequency i 3 vdd power input pin for vdd p 4 ti touch input b 5 ci sensor control input b 6 nc 7 vss power input pin for vss p 8 at angle - trigger output o features : 1. no mechanically switch elements. 2. high sensitivity and stability for long connecting wire and heavy loading (800pf) on sense - plate for human body capacity = 50pf 3. very small number of peripheral components required operating parameter : 1. operating voltage : 6.8 v 2. operating current : ?? 1.0 ma 3. trigger output current (at pin) : ?? - 30 ma (vout=6.8v) 4. input leakage : ?? 0.5 ua 5. input low voltage : ?? vss + 0.5v 6. input high voltage : ? vdd - 0.5v 7. operating temperature : 0 j ?? 80 j 8. storage temperature : - 20 j ?? 120 j reference only date : 26 - mar - 2001 vesion : 2.0
page 2 TT8486A(tt6061a) block diagram detector trigger buffer at ci ti fi ck register step touch decoder & counter crossing zero generator frequency nc TT8486A 8 7 6 5 4 3 2 1 at vss ci ti vdd fi ck lamp ac 110v/60hz c3 c2 c1 c5 c4 r2 r3 r4 r5 r6 r1 for 220v/50hz : note : change r6 1m to 1.5m ( for 110v change to 220v ) change r1 510k to 620k ( for 60hz change to 50hz ) change r2 20k/1w to 40k/2w ( for 110v change to 220v ) TT8486A/tt6061a recommend application diagram 0.47uf/16v 6.8m 1m 510k 20k/1w 1n40 d1 6.8v zd1 - + 100uf/16v - + g t2 t1 triac 10k 473 1n4148 d3 1n4148 d2 1k 1000p/1kv 1000p/1kv touch plate page 3 tc8486a pad's coordinate nc chip size : 640 um x 830 um 51.3 -267.7 -267.7 -267.7 -267.7 267.7 267.7 267.7 267.7 151.2 34.2 -82.8 -199.8 -199.8 -66.6 199.8 8 7 6 5 4 3 2 at vss ci ti vdd fi 1 ck name no. y x pin pin tc8486a pad's diagram 2 8 7 6 5 1 3 4 |
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